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REF/EA-API: EA constructor without dtype specified

API Design

ConstructorsSeries/DataFrame/Index/pd.array ConstructorsSeries/DataFrame/Index/pd.array Constructors

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

ExtensionArray - New Method RequestSuggestion to add a new method to the EA base class/interface.Suggestion to add a new method to the EA base class/interface.

Status: Open.

#56430 In pandas-dev/pandas;

· jbrockmendel opened on Dec 10, 2023

DEPR: values casting dt64tz, Interval, Period

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DatetimeDatetime data dtypeDatetime data dtype

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

IntervalInterval data typeInterval data type

PeriodPeriod data typePeriod data type

Status: Open.

#54717 In pandas-dev/pandas;

· jbrockmendel opened on Aug 23, 2023

DISC: Make all user-facing dtypes ExtensionDtype

API Design

Clean

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

RefactorInternal refactoring of codeInternal refactoring of code

Status: Open.

#53778 In pandas-dev/pandas;

· jbrockmendel opened on Jun 21, 2023

DEPR: values_for_argsort, values_for_factorize, from_factorized

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#53501 In pandas-dev/pandas;

· jbrockmendel opened on Jun 2, 2023

BUG: _validate_setitem_value fails to raise for PandasArray

Bug

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Status: Open.

#51044 In pandas-dev/pandas;

· jbrockmendel opened on Jan 28, 2023

API: Series[EA].fillna fallback behavior with incompatible value

Bug

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

SeriesSeries data structureSeries data structure

Status: Open.

#45153 In pandas-dev/pandas;

· jbrockmendel opened on Jan 1, 2022

API: require __array__ in EA interface

API Design

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

ExtensionArray - New Method RequestSuggestion to add a new method to the EA base class/interface.Suggestion to add a new method to the EA base class/interface.

Status: Open.

#45093 In pandas-dev/pandas;

· jbrockmendel opened on Dec 28, 2021

BUG: find_common_type incorrect for Categorical with NaNs

CategoricalCategorical Data TypeCategorical Data Type

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

Status: Open.

#38240 In pandas-dev/pandas;

· jbrockmendel opened on Dec 2, 2020

BUG: Categorical.values_for_(factorize|argsort) dont preserve order

Bug

CategoricalCategorical Data TypeCategorical Data Type

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Open.

#33245 In pandas-dev/pandas;

· jbrockmendel opened on Apr 2, 2020

ENH: allow EA to register types for is_scalar

Enhancement

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Open.

#27462 In pandas-dev/pandas;

· jbrockmendel opened on Jul 19, 2019